PowerShares DB Commodity Index Tracking Fund just came out with a new prospectus, available here. This is an SEC requirement for firms looking to issue certain types of securities. An excerpt of the prospectus is provided below:

424B3
1
d170323d424b3.htm
SUPPLEMENT
Supplement
Filed Pursuant to Rule 424(b)(3) Registration Nos. 333-203054
POWERSHARES DB COMMODITY INDEX TRACKING FUND SUPPLEMENT DATED MARCH 30, 2016 TO PROSPECTUS DATED MARCH 27, 2015
This Supplement updates certain information contained in the Prospectus dated March 27, 2015, as supplemented from time-to-time (the
Prospectus), of PowerShares DB Commodity Index Tracking Fund (the Fund). All capitalized terms
used in this Supplement have the same meaning as in the Prospectus. Prospective investors in the Fund should review carefully the contents of both this Supplement and the Prospectus. * * * * * * * * * * * * * * * * * * * All information in the Prospectus is
restated pursuant to this Supplement, except as updated hereby.
Neither the
Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this Supplement or the related Prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.
THE COMMODITY FUTURES TRADING COMMISSION HAS NOT PASSED UPON THE MERITS OF PARTICIPATING IN THIS POOL NOR HAS THE COMMISSION PASSED UPON
THE ADEQUACY OR ACCURACY OF THIS DISCLOSURE DOCUMENT.
Invesco
PowerShares Capital Management LLC Managing Owner P-DBC-PRO-1-SUP-1 033016
I.
Pages 40 and 41 of the Prospectus are hereby deleted and replaced, in their entirety, with the following
CLOSING LEVELS TABLE* DBIQ OPTIMUM YIELD DIVERSIFIED COMMODITY INDEX EXCESS RETURN
CLOSING LEVEL
INDEX
CHANGES
High1
Low2
Annual3
Since Inception4
19975
103.35
92.60
-7.40%
-7.40%
1998
93.07
63.74
-30.22%
-35.38%
1999
88.04
60.62
34.94%
-12.80%
2000
123.09
85.21
24.43%
8.50%
2001
114.11
88.26
-16.62%
-9.54%
2002
115.96
88.19
25.81%
13.81%
2003
145.82
112.87
27.03

The above information was disclosed in a filing to the SEC. To see the filing, click here.